//flex布局复用
@mixin flex($hov:space-between,$col:center) {
	display: flex;
	justify-content: $hov;
	align-items: $col;
}


@mixin bgImg($w:0,$h:0,$img:' ',$size:contain) {
	display: inline-block;
	width: $w;
	height: $h;
	background:url($img) no-repeat center;
	background-size: $size;
}